Locking device for stripping-brush in revolving-flat cards.



No. 682,727. Patented Feb. 4, 1902.

c. E SMITH. V LOOKING DEVICE FOR STBIPPING BRUSH IN REVOLVING FLAT CARDS,

(Application fllad Mm; 15, 1901..) (N0 Model.) ZShaets-Sheet I.

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No.692,727. Patented m. 4, I902.

c. E. SMITH.

LOCKING DEVICE FOR STRIPPING BRUSH IN REVOLVING FLAT CARDS.

I (Application filed Mar. 16, 1901.) (No Model.) 2 Sheets-Sheet 2.

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UNITED STATES;

PATENT OFFICE.

CYRUS E. SMITH, OF FALL RIVER, MASSACHUSETTS, ASSIGNOR OF ON E-HALF TO EDIVARD SI-IOVE, OF FALL RIVER, MASSACHUSETTS.

LOCKING DEVICE FOR ST RlPPlN G-BRUSH- 1N REVOLVING-FLAT CARDS.

SPECIFICATION forming part of Letters Yatent No. 692,727, dated February 4, 1902.

Application file March 15,1901. Serial No. 51,288. (1% model.)

To all whom, it may concern: I

Be it known that I, CYRUS EDWARD SMITH,-

for Stripping-Brushes in Revolving-Flat Ootton-Cards, of which the following is a specitication, reference being had therein to the IQ accompanying drawings.

Figure l is a perspective view showing devices for locking in their bearings the journals of a stripping-brush and a grinding-roll on revolving-flat cotton-card. Fig. 2 shows one journal of a stripping-brush and a longitudinal section of a locking-bolt movably secured on the spindle of said brush. Fig. 3 is a perspective view of a bracket in which is a bearing for above journal and on which is a stud or catch to engagethe recessed end of the locking-bolt. Fig. 4 is a perspective view of said catch and bolt about to become locked together, the journal being some distance above its seat in the bearing.

in section the catch and recess in bolt in looking engagement. Fig. 6 isaperspective view of a modified form of bracket which performs the same function as the catch in Figs. 3, 4, and 5. Fig. '7 shows in section the recessed o bolt and modified form of catch about to be in locking engagement. Fig. 8 shows bolt and catch shown in Fig. '7 in looking engagement. Fig. 9 shows a longitudinal section of modified form of recessed bolt fast to spindle.

5 Fig. 10 is a perspective view of bracket having a movable catch to engage the bolt shown in Fig. 9. Fig. 11 shows longitudinal section of bolt and catch, the latter about to engage the former, the journal of the spindle being about to be seated in its bearing in the bracket; and Fig. 12 shows in section the bolt and catch in locking engagement.

My invention is embodied in a device particularly adapted to lock in their bearings the journals of stripping-brushes or grinding-rolls, as the case may be, on revolvingtlat cards.

The bearings as usually made for brushes and grinders are shallow to enable a couple 0 of men to lift the heavy brush, for example, into and out of its bearings; butthe moment Fig. 5 shows 1 power is thrown onto the brush by the man at the power end thereof the brush tends to ride up out of its hearing. The power-belt, however, keeps the brush in its power end bearing,while the second man at the opposite end of the brush holds the said opposite end down in its bearing until the brush is well started in its rotation, when it is less likely to jump out thereof and damage the cardclothing.

Now the principal advantages of my invention are that while it enables the brush or grinder to be lifted into and out of its shallow bearings the brush or grinder when seated therein becomes instantly locked therein and cannotjump out thereof and jam down onto the card-clothing and greatly injure the same, and, further, it does not require a second man to watch the brush until it is well started.

In the drawings illustrating the principle of my invention and the best mode now known to me of applying thatprinciple, A is a stripping-brush or grinding-roll, as the case may 7 5 be, whose spindle a has two collars, as a, journals a supported in bearings 11 in brackets l), and C is a locking device, one or more of which may be used on a spindle. The bolt 0 of the locking device 0 is tubular and slides on the 1 rec end portion of the spindle at, whose bearings in the bolt 0 are a collar-cl,- secured to the bolt 0 and forming the orificethe'reof adjacent to the free end of the spindle, and a perforated partition 0 substantially dividing 8 5 the interior of said bolt into two cavities, one containing a spiral spring 0 and the other forming a latch-surface c to cotiperate with a catch 0 to be later described. The spiral spring 0 abuts against partition 0 and also against a ring a fixable to the spindle a by a screw c access to the head of which is through a hole c in bolt 0. The ring 0 is smaller in diameter than thespring-chamber and is located between said spring 0 and said 5 collar 0 the contact of the collar 0 and the ring 0 thus limiting the expansion of the spring 0 From the side of the bracket 1) and beneath the bearing 17 of the journal a of the spindle on projects a catch c, whose upper face 0 is inclined outwardly and downwardly.

To assemble the parts, the bolt 0, with its one or more of its bolts its s rin s 0 its rings 0 and collars 0 is lifted and lowered into its bearings b in the brackets 11 by two men in the usual manner, each man grasping a free end of the spindle a, (see Fig. 1,) the normal relation of spindle and bolt 0 being shown in Fig. 2. As the normal distance between the inner edge of the bolt 0 and the collar 0. on the spindle a is practically the same as the thickness of the brackets 12', said outer edge of the bolt 0, as the spindle a descends into its bearings 19, comes into contact with the inclined face o of the catch 0, the bolt 0 is forced away from bracket b to the right, as shown in Fig. 4, and just as the spindle 0. becomes seated in the bearings b the latch-face c of the bolt 0 and the bottom of its catch 0 are, by the compressed spring 0?, snapped into locking engagement. Should the spindle for any reason tend to leave its bearing, the catch o and bolt 0 are always ready to resist such tendency. To remove the brush A from the card, the ends of the spindle after power has been removed are grasped as usual, the bolt moved away from the catch, and then the spindle lifted out of its bearings.

The gist of my invention resides in providing a bolt and catch that may engage each other in planes parallel with the axis of the spindle, and it will be plain to all those skilled in the art to which this invention appertains that said invention can be embodied in different forms without departing from the spirit thereof, and I wish to claim it in the broadest manner legally possible. For example, Figs. 6, 7, 8, 9, 10, 11., and 12 show some of the modified forms.

In Fig. 6 the bracket is so formed that the portion o performs the function of the catch 0, (shown in Fig. 3,) the method of locking the spindle a, in its hearing I) being shown in Figs.

4, 5, 7, and 8.

Figs. 9, 10, 11, and 12 show another modi-, fication of my invention, in which the recessed bolt 0 is made fast to the spindlea by a screw 0 The bracket b, with its bearing 1) for the journal a of the spindle a, is provided with a .surface 0 of the recessed bolt 0.

catch 0, having an inclined face 0 the catch being capable of reciprocation parallel with the axis of the spindle and engaging the latch- To hold the catch 0 in looking engagement with the recessed bolt, a spring 0 is secured both to the bracket b and the catch o as shown in Figs. 10, 11, and 12. In this modified form the bolt has no lengthwise movement and the catch may be reciprocated, while in the first modification and also in the preferred form of looking device the bolt may be reciprocated and the catch is fixed.

What I claim is 1. A spindle; a bearing therefor in a bracket; means to prevent a lengthwise movement of the spindle relatively to said bracket; a bolt mounted on said spindle and provided with a cylindrical recess whose axis coincides with that of the spindle and whose orifice is adjacent to said bracket; and a catch which is so mounted in reference to the bracket and the bolt that the catch and cylindrical surface of said recess in the bolt may be inlocking engagement.

2. Aspindle; abearing thereforin abracket; means to prevent a longitudinal movement of thespindle relatively to the bracket; a bolt mounted on said spindle and provided with a cylindrical recess whose axis coincides with that of the spindle and whose orifice is adjacent to said bracket, said bolt being movable longitudinally; and a catch fixed to said bracket to engage the cylindrical surface of said recess in the bolt.

3. A spindle; a bearing therefor in a bracket; means to prevent a longitudinal movement of the spindle relatively to the bracket; a bolt mounted on said spindle and provided with a cylindrical recess whose axis coincides with that of the spindle and whose orifice is adjacent to said bracket, said bolt being movable longitudinally and transversely relatively to the spindle;'a catch fixed to said bracket, to I00 engage the cylindrical surface of said recess in the bolt; means to exert stress on the bolt to hold the bolt and catch in engagement; and means on the spindle to limit the movement of the bolt toward the catch.

In testimony whereof I affix my signature in presence of two witnesses.

CYRUS E. SMITH. 

